120
FNCA52 TJSJ 031930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST SAT OCT 3 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-040800-
SOUTHEAST COASTAL PLAINS-
330 PM AST SAT OCT 3 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 40 10
TEMP (24H TREND) 74 (-2) 92 (+2) 74 92
RH % (24H TREND) 89 (+2) 48 (-4) 90 47
WIND 20FT/EARLY(MPH) E 13 E 12 E 10 E 12
WIND 20FT/LATE(MPH) NE 8 SE 13 NE 9 SE 14
MIXING HGT(FT-AGL/MSL) 5030 4890
TRANSPORT WND (MPH) E 12 E 12
VENT RATE (KT-FT) 50300 48900
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-040800-
SOUTHERN HILLS-
330 PM AST SAT OCT 3 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 10 40 50 30
TEMP (24H TREND) 70 (-3) 89 (+3) 70 89
RH % (24H TREND) 95 (+4) 59 (-5) 96 59
WIND 20FT/EARLY(MPH) E 10 E 10 E 10 E 9
WIND 20FT/LATE(MPH) NE 9 SE 10 E 9 SE 11
MIXING HGT(FT-AGL/MSL) 5350 5400
TRANSPORT WND (MPH) E 10 E 10
VENT RATE (KT-FT) 48150 48600
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-040800-
NORTH COASTAL PLAINS-
330 PM AST SAT OCT 3 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 40 40 60 20
TEMP (24H TREND) 73 (-3) 91 (+1) 73 92
RH % (24H TREND) 95 (+3) 59 (-5) 95 59
WIND 20FT/EARLY(MPH) E 17 E 10 E 11 E 9
WIND 20FT/LATE(MPH) SE 9 E 13 SE 9 E 14
MIXING HGT(FT-AGL/MSL) 5090 4790
TRANSPORT WND (MPH) E 12 E 10
VENT RATE (KT-FT) 50900 43110
DISPERSION 5 5
DSI 5 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-040800-
NORTHERN HILLS-
330 PM AST SAT OCT 3 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 60 70 40
TEMP (24H TREND) 71 (-2) 90 (+1) 71 91
RH % (24H TREND) 96 (+1) 61 (-3) 97 60
WIND 20FT/EARLY(MPH) E 13 E 9 E 9 E 9
WIND 20FT/LATE(MPH) SE 8 E 10 SE 5 E 12
MIXING HGT(FT-AGL/MSL) 4830 5100
TRANSPORT WND (MPH) E 8 E 8
VENT RATE (KT-FT) 33810 35700
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-040800-
WEST COAST-
330 PM AST SAT OCT 3 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 70 60 60
TEMP (24H TREND) 74 (-1) 92 (+1) 73 93
RH % (24H TREND) 94 (+2) 58 (-5) 95 58
WIND 20FT/EARLY(MPH) E 10 E 9 E 8 E 9
WIND 20FT/LATE(MPH) E 9 E 9 E 6 E 10
MIXING HGT(FT-AGL/MSL) 4580 4180
TRANSPORT WND (MPH) E 8 SE 6
VENT RATE (KT-FT) 32060 20900
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-040800-
EASTERN INTERIOR-
330 PM AST SAT OCT 3 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS TSTMS SHOWERS
CHANCE PRECIP (%) 40 40 60 20
TEMP (24H TREND) 72 (-3) 90 (+2) 72 91
RH % (24H TREND) 94 (+3) 58 (-4) 95 58
WIND 20FT/EARLY(MPH) E 11 E 10 E 11 E 8
WIND 20FT/LATE(MPH) E 11 E 12 SE 10 E 11
MIXING HGT(FT-AGL/MSL) 6020 5970
TRANSPORT WND (MPH) E 10 E 10
VENT RATE (KT-FT) 54180 53730
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-040800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST SAT OCT 3 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 60 50 60 30
TEMP (24H TREND) 70 (-3) 86 (+3) 70 87
RH % (24H TREND) 98 (+4) 61 (-5) 98 62
WIND 20FT/EARLY(MPH) E 8 E 9 E 8 E 8
WIND 20FT/LATE(MPH) E 8 E 10 E 8 E 9
MIXING HGT(FT-AGL/MSL) 4490 4460
TRANSPORT WND (MPH) E 12 E 12
VENT RATE (KT-FT) 44900 44600
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-040800-
CENTRAL MOUNTAIN RANGE-
330 PM AST SAT OCT 3 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 70 70 60
TEMP (24H TREND) 68 (-3) 87 (+4) 68 88
RH % (24H TREND) 96 (+2) 63 (-6) 97 62
WIND 20FT/EARLY(MPH) E 8 E 6 LGT/VAR E 6
WIND 20FT/LATE(MPH) E 6 SE 6 LGT/VAR E 6
MIXING HGT(FT-AGL/MSL) 5140 5760
TRANSPORT WND (MPH) E 7 SE 7
VENT RATE (KT-FT) 30840 34560
DISPERSION 5 5
DSI 1 6 1 5
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-040800-
CAYEY MOUNTAIN RANGE-
330 PM AST SAT OCT 3 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS TSTMS SHOWERS
CHANCE PRECIP (%) 50 30 60 10
TEMP (24H TREND) 70 (-3) 86 (+2) 70 87
RH % (24H TREND) 97 (+2) 61 (-4) 98 62
WIND 20FT/EARLY(MPH) E 9 E 9 E 8 E 8
WIND 20FT/LATE(MPH) E 6 E 9 E 6 E 10
MIXING HGT(FT-AGL/MSL) 5500 5440
TRANSPORT WND (MPH) E 12 E 12
VENT RATE (KT-FT) 55000 54400
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-040800-
VIEQUES-
330 PM AST SAT OCT 3 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 40 50 60 30
TEMP (24H TREND) 77 (-3) 90 (+1) 78 91
RH % (24H TREND) 85 (+3) 56 (-4) 86 57
WIND 20FT/EARLY(MPH) E 13 E 11 E 13 E 10
WIND 20FT/LATE(MPH) E 13 E 11 E 13 E 11
MIXING HGT(FT-AGL/MSL) 3710 3260
TRANSPORT WND (MPH) E 14 E 13
VENT RATE (KT-FT) 44520 35860
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-040800-
CULEBRA-
330 PM AST SAT OCT 3 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS SHOWERS
CHANCE PRECIP (%) 40 40 50 30
TEMP (24H TREND) 79 (-2) 92 (+2) 80 92
RH % (24H TREND) 84 (+4) 56 (-6) 85 58
WIND 20FT/EARLY(MPH) E 13 E 12 E 12 E 11
WIND 20FT/LATE(MPH) E 13 E 11 E 12 E 11
MIXING HGT(FT-AGL/MSL) 3660 3300
TRANSPORT WND (MPH) E 14 E 13
VENT RATE (KT-FT) 43920 36300
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-040800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST SAT OCT 3 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 30 40 30 40
TEMP (24H TREND) 75 (-2) 93 (+2) 75 93
RH % (24H TREND) 85 (0) 48 (-4) 88 47
WIND 20FT/EARLY(MPH) E 13 E 12 E 11 E 13
WIND 20FT/LATE(MPH) E 10 SE 12 E 11 SE 14
MIXING HGT(FT-AGL/MSL) 4600 4700
TRANSPORT WND (MPH) E 13 SE 12
VENT RATE (KT-FT) 50600 47000
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-040800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST SAT OCT 3 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 50 50 30
TEMP (24H TREND) 77 (-3) 88 (+1) 77 88
RH % (24H TREND) 86 (+5) 61 (-4) 87 62
WIND 20FT/EARLY(MPH) E 14 E 13 E 13 E 11
WIND 20FT/LATE(MPH) E 14 E 12 E 13 E 11
MIXING HGT(FT-AGL/MSL) 3530 3190
TRANSPORT WND (MPH) E 16 E 14
VENT RATE (KT-FT) 49420 38280
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-040800-
ST CROIX-
330 PM AST SAT OCT 3 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS SHOWERS
CHANCE PRECIP (%) 30 50 50 30
TEMP (24H TREND) 78 (-2) 91 (+2) 78 91
RH % (24H TREND) 86 (+3) 61 (-4) 88 63
WIND 20FT/EARLY(MPH) E 13 E 12 E 12 E 11
WIND 20FT/LATE(MPH) E 13 E 12 E 12 E 12
MIXING HGT(FT-AGL/MSL) 4830 4460
TRANSPORT WND (MPH) E 16 E 15
VENT RATE (KT-FT) 67620 57980
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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